HIKVISION AX Pro Wireless Alarm (2nd Gen) – Outdoor Siren Blue (DS-PS1-E) Wireless External Sounder The wireless external sounder, supporting 433 MHz wireless communication, Tri-X wireless protocol, multiple enrollment methods, two-way wireless communication, multiple alarm sounds, and strobe light indication, is used for instant alarm alerting. 433 MHz two-way wireless communication -3 years battery life span (triggered every two weeks and alerting 90 s for each triggering) -AES-128 encryption Front and rear panel tamper-proof -3 kinds of alarm sounds: fire alarm, panic alarm, and intrusion alarm -Buzzer Decibel: 110 dB -Fully remote configurable through App -Multiple enrollment methods and easy installation design -Frequency hopping against jamming for reliable transmission -IP65 protective level RF Frequency 433 MHz Modulation 2GFSK Method Two-way communication RF encryption AES-128 RF distance 900m (open area) Electrical & battery Power Battery (default power supply method) or 12 VDC Consumption Static consumption: 30 to 40uA Battery life span 4 CR123A, 3 years in work status (triggered every two weeks and alerting 90 s for each triggering) Interface and component Power switch Supported Tamper switch Supported, Front and rear tamper-proof Indicator Indicator: Red/Green Strobe light: Red/Blue(white on the board) Buzzer Decibel: 110 dB General Operation temperature -20 °C to 60 °C (-4 °F to 140 °F) Operation humidity 10% to 90% (no condensing) Colour White Material PC+ABS Dimension (W x H x D) 190 × 200 × 47. 3mm .( 7.48” x 7.87” x 1.86”) Weight 606.5 g (21.4 oz) Protection level IP65 Installation Wall mounting